- published: 17 Jan 2017
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Venom is a form of toxin secreted by an animal for the purpose of causing harm to another. Venom is injected into victims by means of a bite, sting or other sharp body feature, which differentiates it from poison (that is absorbed, consumed or inhaled).
The potency of different venoms varies; lethal venoms are often characterised by the median lethal dose (LD50, LD50, or LD-50), expressed in terms of mass fraction (e.g., milligrams of toxin per kilogram of body mass), that will kill 50% of the target of a specified type (e.g., laboratory mice).
Utilization of venom across a large number of species demonstrates an example of convergent evolution and a homoplastic trait. It is difficult to conclude exactly how this trait came to be so intensely widespread and diversified. The multigene families that encode the toxins of venomous animals are actively selected on, creating more diverse toxins with specific functions. Venoms adapt to their environment and victims and accordingly evolve to become maximally efficient on a predator’s particular prey (particularly the precise ion channels within the prey). Consequently, venoms become specialized to an animal’s standard diet.
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Harry Potter is a series of seven fantasy novels and one play written by British author J. K. Rowling. The series chronicles the life of a young wizard, Harry Potter, and his friends Hermione Granger and Ron Weasley, all of whom are students at Hogwarts School of Witchcraft and Wizardry. The main story arc concerns Harry's struggle against the Dark wizard Lord Voldemort, who aims to become immortal, overthrow the Ministry of Magic, subjugate non-magic people and destroy anyone who stands in his way.
Since the release of the first novel, Harry Potter and the Philosopher's Stone, on 30 June 1997, the books have gained immense popularity, critical acclaim and commercial success worldwide. They attracted a wide adult audience, and have remained one of the preeminent cornerstones of young adult literature. The series has also had some share of criticism, including concern about the increasingly dark tone as the series progressed, as well as the often gruesome and graphic violence depicted in the series. As of July 2013, the books have sold more than 450 million copies worldwide, making the series the best-selling book series in history, and have been translated into 73 languages. The last four books consecutively set records as the fastest-selling books in history, with the final instalment selling roughly 11 million copies in the United States within the first 24 hours of its release.
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“Vitality — that is the test; and, whatever its components, mere truth is not necessarily one of them. A dragon, for instance, is a more enduring animal than a pterodactyl. I have never yet met anyone who really believed in a pterodactyl; but every honest person believes in dragons — down in the back-kitchen of his consciousness.” -Kenneth Grahame Outro Song: Just A Ride by Rishloo http://www.rishloo.com/ https://itunes.apple.com/us/album/living-as-ghosts-buildings/id976469574 BOOKS The Reluctant Dragon by Kenneth Grahame on Amazon http://geni.us/TheReluctantDragon The Fruit, The Tree, And The Serpent: Why We See So Well by Lynne A. Isbell on Amazon http://geni.us/TheFruitTreeSerpent An Instinct For Dragons by David E. Jones on Amazon http://geni.us/AnInstinctForDragons The Dragons O...
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Gotham Episode 5 TOP 5 Batman Easter Eggs. Bane Venom, Arkham City Wayne Murder Theories, Bette Kane Batgirl and Constantine Episode 1 info ► http://bit.ly/AwesomeSubscribe Constantine Character History ► http://bit.ly/1uN8NoM Gotham Episode 4 Arkham Easter Eggs ► http://bit.ly/10gzC9T Emergency Awesome Fall Schedule ► http://bit.ly/EAtrailer Twitter http://twitter.com/awesomemergency Facebook http://facebook.com/emergencyawesome Instagram http://instagram.com/emergencyawesome Tumblr http://robotchallenger.com ::Playlists For Shows:: The Walking Dead Season 4 ► http://bit.ly/WalkingDeadVids Doctor Who Series 8 ► http://bit.ly/DoctorWhoSeries8 Game of Thrones Season 4 ► http://bit.ly/GameOfThronesSeason4 Sherlock Season 3 ► http://bit.ly/SherlockSeason3 Arrow Season 2 ► http://bit....
This Document explains SCP-507's dimensions and areas he visits when he "Shifts" Read along with me! ♣Read along: http://www.scp-wiki.net/document-507-3b Lost Frontier - Kevin MacLeod (incompetech.com) Licensed under Creative Commons: By Attribution 3.0 License http://creativecommons.org/licenses/by/3.0/ My SCP readings Season 1: https://www.youtube.com/watch?v=H0xFp1HRmSQ&list;=PLWbMmdyBjyTxAdPDhu-K3KbOuG-cebCvL Season 2: https://www.youtube.com/watch?v=CUMD8Jlhk5k&list;=PLWbMmdyBjyTwtSTBO1AuXI0O_BoU1NH-j Season 3: https://www.youtube.com/playlist?list=PLWbMmdyBjyTz0c35j0K0r3kh1USnEBjNn Help me out on Patreon! ▼Patreon▼ https://www.patreon.com/EastsideShowSCP Join me on Facebook and Twitter! ♣Facebook: https://www.facebook.com/EastsideShowscp ♣Twitter: https://twitter.com/Eastsides...
Our buddy Steve-O sends out an invitation to his biggest fans to join him on his last day of freedom before he has to report to jail. At the event, he performs for them, signs autographs, and takes photos. A security guard arrives to breakup the non-permitted event. He argues with Steve-O several times. Then Steve-O storms out, returning in a monster truck and crushes the security guard’s car! YouTube Red Original Series https://www.youtube.com/red?acc=75MRPABDD3SV Featured in this episode: Steve-O https://www.youtube.com/user/steveo Follow us on Twitter: http://twitter.com/PhillyChic5 http://twitter.com/JesseWelle Follow us on Instagram: http://instagram.com/jeanapvp http://instagram.com/jessewelle Add us on Snapchat: RealJeanapvp Jessepvp Facebook: http://facebook.com/prankvspr...
Harry, Ron and Hermione set out on their perilous mission to track down and destroy the Horcruxes the keys to Voldemort's immortality. On their own, without the guidance or protection of their professors, the three friends must now rely on one another more than ever. But there are Dark Forces in their midst that threaten to tear them apart. Meanwhile, the Wizarding world has become a dangerous place for all enemies of the Dark Lord. The long-feared war has begun and Voldemort's Death Eaters seize control of the Ministry of Magic and even Hogwarts, terrorizing and arresting anyone who might oppose them. But the one prize they still seek is the one most valuable to Voldemort: Harry Potter. Harry's only hope is to find the Horcruxes before Voldemort finds him. But as he searches for clues, he...
Get your #ididascience shirt here! http://dftba.com/besmart Tweet this ⇒ http://bit.ly/OKTBSpwr Share on FB ⇒ http://bit.ly/OKTBSpwrFB ↓ More info and sources below ↓ If you want to read more (MUCH more) about this, check out “The Vital Question” by Nick Lane: http://amzn.to/1SntUdG And I really enjoyed this recent episode of Radiolab about this same story: http://www.radiolab.org/story/cellmates/ ---- Have an idea for an episode or an amazing science question you want answered? Leave a comment or check us out at the links below! Like us on Facebook: http://www.facebook.com/itsokaytobesmart Follow on Twitter: http://twitter.com/okaytobesmart http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart.com Follow on Instagram: http://instagram.com/jtotheizzoe Fol...
SCP-507 is apparently a Caucasian male with blond hair and green eyes, sporting no other outstanding characteristics besides being somewhat overweight and speaking with a vague accent of disputable origin. Although SCP-507 has an already-established name due to its unremarkable upbringing, it seems to find entertainment in forcing those it meets to give it a nickname in lieu of divulging this information. Thus SCP-507 will now respond to the names Tommy, Steve, Bruto, Guy, Houdini, and Grabnok the Destroyer. SCP-507 was originally recovered from the ████ ██ asylum, when standard surveillance following repeated successful escape attempts brought its abilities to light. All records of this incident were confiscated, and SCP-507 was taken into custody under the pretense of moving it to a mor...
Hi guys, all the information is in the video, here's the link to my best friend's channel: Gav Ritt. https://www.youtube.com/channel/UCNO6WF1wGOUNwsxzjqK9S9g
Chemicals React! Get yourself an awesome IOTBS shirt! http://dftba.com/besmart ↓ More info and sources below ↓ For lots more of history’s greatest chemical innovations, check out “The Chemistry Book” by Derek B. Lowe: http://amzn.to/1snWG44 ---- Have an idea for an episode or an amazing science question you want answered? Leave a comment or check us out at the links below! Like us on Facebook: http://www.facebook.com/itsokaytobesmart Follow on Twitter: http://twitter.com/okaytobesmart http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart.com Follow on Instagram: http://instagram.com/jtotheizzoe Follow on Snapchat: YoDrJoe ----------------- It’s Okay To Be Smart is written and hosted by Joe Hanson, Ph.D. Follow me on Twitter: @jtotheizzoe Produced by PBS Dig...